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Browsing by Author "Kebede, Mesfin A"

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a-MnO2 nanorod/onion-like carbon composite cathode material for aqueous zinc-ion battery

Author: Palaniyandy, Nithyadharseni ; Kebede, Mesfin A ; Raju, Kumar ; Ozoemena, KI ; Le Roux, Lukas ; Mathe, Mahlanyane K ; Jayaprakasam, R Date: May 2019 Onion-like carbon (OLC) integrated a-MnO2 nanorods (a-MnO2/OLC) composite has been studied as a viable cathode material for potential development of high-performance zinc-ion batteries (ZIBs). XRD results revealed the tetragonal phase of the ... Read more
Binderless solution processed Zn doped Co3O4 film on FTO for rapid and selective non-enzymatic glucose detection

Author: Chowdhury, M ; Cummings, F ; Kebede, Mesfin A ; Fester, V Date: Sep 2016 A simple solution based deposition process has been used to fabricate Zn doped Co(sub3)O(sub4) electrode as an electrocatalyst for non-enzymatic oxidation of glucose. XRD, HRTEM, SEM, EELS, AFM, EIS was used to characterise the electrode. The ... Read more
Carbon derivatives in performance improvement of lithium-ion battery electrodes

Author: Obodo, RM ; Nwanya, AC ; Ahmad, I ; Kebede, Mesfin A ; Ezema, FI Date: Nov 2021 Various carbon derivatives such as activated carbon, reduced graphene oxide (rGO), graphene oxide (GO), carbon nanotubes (CNTs), etc., have triggered favourable interest towards enhancing the energy storage capacity of lithium-ion batteries ... Read more
Cathode materials for sodium-ion-based energy storage batteries

Author: Nwany, AC ; Kebede, Mesfin A ; Ezema, FI Date: Dec 2019 The quest for mobile energy storage has revolutionized research in energy storage, especially in rechargeable batteries. Presently, lithium-ion batteries dominate the market. They are widely used in products ranging from consumer electronics ... Read more
Current status and trends in spinel cathode materials for lithium-ion battery

Author: Kebede, Mesfin A ; Palaniyandy, Nithyadharseni ; Koao, LF ; Ezema, FI ; Mhlongo, MR Date: Nov 2021 Lithium-ion batteries (LIBs) are the most suitable and preferred energy storage system for powering electric vehicles (EVs), plug-in hybrid electric vehicles (PHEVs), and stationary applications owing to their attractive properties including ... Read more
Dual performance of fuel cells as efficient energy harvesting and storage systems

Author: Chinecherem, A ; Kebede, Mesfin A Date: Nov 2021 The need for increased energy security in the nation has diverted energy sources from conventional forms to the use of fuel cells. Fuel cells are generally accepted for electricity generation due to their increased conversion efficiency, ... Read more
Dual polymer/liquid electrolyte with BaTiO3 electrode for magnesium batteries

Author: Shela, E ; Liu, F ; Wang, T ; Farrag, M ; Liu, J ; Yacout, N ; Kebede, Mesfin A ; Sharma, N ; Fan, LZ Date: Apr 2020 With a low cost and high volumetric capacity, rechargeable magnesium batteries (RMBs) have emerged as promising candidates for post-lithium ion batteries. The kinetically sluggish Mg2+ insertion/extraction in the host lattice and the ... Read more
The effect of nickel precursors on the electrochemical properties of spinel LiMn2-xNixO4 cathode: a comparative study ofNi(NO3)2·6H2O and NiSO4·6H2O as nickel sources

Author: Kunjuzwa, Niki ; Kebede, Mesfin A ; Mathe, Mahlanyane K ; Modibedi, Remegia M Date: May 2019 A comparative study was carried out with the effect of nickel precursors on the electrochemical performance of spinel LiMn2−x Ni x O4 (x = 0, 0.1 and 0.2) cathode materials. The spinel materials were prepared by employing a low temperature ... Read more
The electrical and electrochemical properties of graphene nanoplatelets modified 75V2O5e25P2O5 glass as a promising anode material for lithium ion battery

Author: Kebede, Mesfin A ; Palaniyandy, Nithyadharseni ; Ramadan, RM ; Sheha, E Date: Feb 2018 A V2O5 anode material significantly challenged on its further development to be used in lithium ion batteries in-terms of its structural degradation, poor cyclability and low conductivity. Thus researchers started to work on composite matrix ... Read more
Electrochemical Devices for Energy Storage Applications

Author: Kebede, Mesfin A ; Ezema, FI Date: Nov 2019 This book explores a wide range of energy storage devices, such as a lithium ion battery, sodium ion battery, magnesium ion battery and supercapacitors. Providing a comprehensive review of the current field, it also discusses the history of ... Read more
Electrochemical performance of two-dimensional Ti3C2-Mn3O4 nanocomposites and carbonized iron cations for hybrid supercapacitor electrodes

Author: Oyedotun, KO ; Momodu, DY ; Naguib, M ; Mirghni, AA ; Khaleed, AA ; Kebede, Mesfin A ; Manyala, Ncholu Date: Apr 2019 In this work, we present a simple two-step synthesis route to develop a cost effective high performance Ti(sub3)C(sub2)eMn(sub3)O(sub4) nanocomposite via a solvothermal process at 150 degrees celsius. The characterization of the composite ... Read more
First-principles investigation of W-V and W-Mo alloys as potential plasma facing materials (PFMs) for nuclear application bondMo alloys as potential plasma facing materials (PFMs) for nuclear application

Author: Phasha, MJ ; Bolokang, Amogelang S ; Kebede, Mesfin A Date: Feb 2021 Density-functional theory (DFT) based first-principles calculations were used to investigate the crystal structure, binding energy, phase stability and elastic properties of body-centered cubic (BCC) W-based binary solid solutions. The effect ... Read more
High rate and stable capacity performance of 2D LiMn1.5Ni0.5O4 nanoplates cathode with ultra-long cycle stability

Author: Palaniyandy, N ; Reddy, MV ; Zaghib, zK ; Kebede, Mesfin A ; Raju, Kumar ; Modibedi, Remegia M ; Mathe, Mahlanyane K ; Abhilash, KP ; Balamuralikrishnan, S Date: May 2022 Typically, the high electrochemical performance of cathode materials is achieved by fine-tuning the surface morphology and particle size of the nano-electrode materials. Two-dimensional (2D) nanomaterials like nanoplates show astounding ... Read more
High-voltage LiNi0.5Mn1.5O4-d spinel material synthesized by microwave-assisted thermo-polymerization: some insights into the microwave-enhancing physico-chemistry

Author: Kebede, Mesfin A ; Yannopoulos, SN ; Sygellou, L ; Ozoemena, KI Date: Oct 2017 Oxygen-deficient pristine (LMNO) and microwave-treated LiMn1.5Ni0.5O4-d (LMNOmic) cathode materials have been synthesized with modified thermo-polymerization synthesis technique. The XRD, XPS, CV and charge/discharge voltage profile analysis ... Read more
Identifying surface degradation, mechanical failure, and thermal instability phenomena of high energy density Ni-rich NCM cathode materials for lithium-ion batteries: A review

Author: Geldasa, FT ; Kebede, Mesfin A ; Shura, MW ; Hone, FG Date: Feb 2022 Among the existing commercial cathodes, Ni-rich NCM are the most promising candidates for next-generation LIBs because of their high energy density, relatively good rate capability, and reasonable cycling performance. However, the surface ... Read more
Layered, spinel, olivine, and silicate as cathode materials for lithium-ion battery

Author: Kebede, Mesfin A ; Palaniyandy, Nithyadharseni ; Koao, LF Date: Dec 2019 The lithium ion battery has been offering a tremendous benefit and contribution to the technological development of humankind by serving as an efficient power source for electronic devices, mobile power stations, and electrical automotive ... Read more
LiMn2O4 /LiMn1.5Ni0.5O4 composite to boost the electrochemical cyclic stability of LiMn2O4

Author: Kebede, Mesfin A Date: Aug 2019 This presentation highlights the following topics: Introduction & applications of LIB; LiMn(sub2)O(sub4)(LMO), LiMn(sub1.5)Ni(sub0.5)O(sub)4(LMNO) cathodes and their challenges; LMO nanorods; Microwave irradiated LMNO and LMNOmic and LMO/LMNO ... Read more
Manganese oxide/graphene oxide composites for high-energyaqueous asymmetric electrochemical capacitors

Author: Jafta, CJ ; Nkosi, F ; Le Roux, Lukas J ; Mathe, Mahlanyane K ; Kebede, Mesfin A ; Makgopa, K ; Song, Y ; Tong, D ; Oyama, M ; Manyala, N ; Chen, S ; Ozoemena, KI Date: Nov 2013 A high-energy aqueous asymmetric electrochemical capacitor was developed using manganese diox-ide ( -MnO2)/graphene oxide (GO) nanocomposites. The nanostructured -MnO2was prepared frommicron-sized commercial electrolytic manganese dioxide ... Read more
Metal oxide-based anode materials for lithium-ion battery

Author: Kebede, Mesfin A ; Palaniyandy, Nithyadharseni Date: Dec 2019 One of the main and crucial components of a lithium-ion battery (LIB) is the anode, a negative electrode as equally significant as the cathode positive electrode. Anodes are typically characterized by delivering a high capacity with low ... Read more
Metal oxides and lithium alloys as anode materials for lithium-ion batteries

Author: Kebede, Mesfin A ; Zheng, Haitao ; Ozoemena, KI Date: Jul 2016 Metal oxides such as TiO(sub2), Li(sub4)Ti(sub5)O(sub12), SnO(sub2), SnO, M(sub2)SnO(sub4) (M=ZnM=Zn, Co, Mn, Mg), TMO (TM=MnTM=Mn, Fe, Co, Ni, or Cu), TM(sub3)O(sub4) (TM=CoTM=Co, Fe, or Mn), and lithium alloys Li–Sn, Li–Si are among the ... Read more

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